As an editor I want to create and manage links in my text so that I can connect content to documents or external URLs.

✅ Acceptance criteria

In read mode, clicking a link navigates to the destination.
In edit mode, clicking a link opens a tooltip (Open · Edit · Remove) instead of navigating.
To enter edit mode when a block is all links and has no plain text to click, the user can click the block's margin or Edit inside the tooltip.
Users without edit permissions are always in read mode — clicking a link always navigates.
To create a link: select text → click the link icon in the toolbar → type a URL or search for a doc.
A URL creates a static link (label never changes). Selecting an internal doc creates a dynamic link (label syncs with doc title).
Editing a link reopens the popover pre-filled. The user can change destination, switch type, or remove the link.